A203953 - cp's OEIS frontend

A203953 Symmetric matrix based on (1,2,1,2,1,2,...), by antidiagonals.

n	a(n)
1	1
2	2
3	2
4	1
5	5
6	1
7	2
8	4
9	4
10	2
11	1
12	5
13	6
14	5
15	1
16	2
17	4
18	6
19	6
20	4
21	2
22	1
23	5
24	6
25	10
26	6
27	5
28	1
29	2
30	4
31	6
32	8
33	8
34	6
35	4
36	2
37	1
38	5
39	6
40	10
41	11
42	10
43	6
44	5
45	1
46	2
47	4
48	6
49	8
50	10
51	10
52	8
53	6
54	4
55	2
56	1
57	5
58	6
59	10
60	11
61	15
62	11
63	10
64	6
65	5
66	1
67	2
68	4
69	6
70	8
71	10
72	12
73	12
74	10
75	8
76	6
77	4
78	2
79	1
80	5
81	6
82	10
83	11
84	15
85	16
86	15
87	11
88	10

[1, 2, 2, 1, 5, 1, 2, 4, 4, 2, 1, 5, 6, 5, 1, 2, 4, 6, 6, 4, 2, 1, 5, 6, 10, 6, 5, 1, 2, 4, 6, 8, 8, 6, 4, 2, 1, 5, 6, 10, 11, 10, 6, 5, 1, 2, 4, 6, 8, 10, 10, 8, 6, 4, 2, 1, 5, 6, 10, 11, 15, 11, 10, 6, 5, 1, 2, 4, 6, 8, 10, 12, 12, 10, 8, 6, 4, 2, 1, 5, 6, 10, 11, 15, 16, 15, 11, 10]

cp's OEIS Frontend

A203953 Symmetric matrix based on (1,2,1,2,1,2,...), by antidiagonals.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	1
5	5
6	1
7	2
8	4
9	4
10	2
11	1
12	5
13	6
14	5
15	1
16	2
17	4
18	6
19	6
20	4
21	2
22	1
23	5
24	6
25	10
26	6
27	5
28	1
29	2
30	4
31	6
32	8
33	8
34	6
35	4
36	2
37	1
38	5
39	6
40	10
41	11
42	10
43	6
44	5
45	1
46	2
47	4
48	6
49	8
50	10
51	10
52	8
53	6
54	4
55	2
56	1
57	5
58	6
59	10
60	11
61	15
62	11
63	10
64	6
65	5
66	1
67	2
68	4
69	6
70	8
71	10
72	12
73	12
74	10
75	8
76	6
77	4
78	2
79	1
80	5
81	6
82	10
83	11
84	15
85	16
86	15
87	11
88	10

n	a(n)
1	1
2	2
3	2
4	1
5	5
6	1
7	2
8	4
9	4
10	2
11	1
12	5
13	6
14	5
15	1
16	2
17	4
18	6
19	6
20	4
21	2
22	1
23	5
24	6
25	10
26	6
27	5
28	1
29	2
30	4
31	6
32	8
33	8
34	6
35	4
36	2
37	1
38	5
39	6
40	10
41	11
42	10
43	6
44	5
45	1
46	2
47	4
48	6
49	8
50	10
51	10
52	8
53	6
54	4
55	2
56	1
57	5
58	6
59	10
60	11
61	15
62	11
63	10
64	6
65	5
66	1
67	2
68	4
69	6
70	8
71	10
72	12
73	12
74	10
75	8
76	6
77	4
78	2
79	1
80	5
81	6
82	10
83	11
84	15
85	16
86	15
87	11
88	10

n	a(n)
1	1
2	2
3	2
4	1
5	5
6	1
7	2
8	4
9	4
10	2
11	1
12	5
13	6
14	5
15	1
16	2
17	4
18	6
19	6
20	4
21	2
22	1
23	5
24	6
25	10
26	6
27	5
28	1
29	2
30	4
31	6
32	8
33	8
34	6
35	4
36	2
37	1
38	5
39	6
40	10
41	11
42	10
43	6
44	5
45	1
46	2
47	4
48	6
49	8
50	10
51	10
52	8
53	6
54	4
55	2
56	1
57	5
58	6
59	10
60	11
61	15
62	11
63	10
64	6
65	5
66	1
67	2
68	4
69	6
70	8
71	10
72	12
73	12
74	10
75	8
76	6
77	4
78	2
79	1
80	5
81	6
82	10
83	11
84	15
85	16
86	15
87	11
88	10